Improvement in draft-equalizers



UNITED STATES PATENT OFFICE.

SAMUEL SMITH, OF MATTOON, ILLINOIS.

IMPROVEMENT IN DRAFT-EQUALIZERS.

Specification forming part of Letters Patent No. 172,514, dated January18, 1876; application filed November 8, 1875.

To all whom it may concern:

Be it known that I, SAMUEL SMITH, of Mattoon, in the county of Uoles andState of Illinois, have invei ted a new and useful Improvement inDraft-Equalizers, which is fully described in the followingspecification, reference being had to the accompanying drawing, inwhich-- Figure 1 is a plan view of my equalizer, and Fig. 2 an edge orfront view of the same with the sin gle-tree detached.

The object of my invention is to bring all the draft attachments uponthe median line of the equalizer taken longitudinally.

The invention consists in making the doubletree of two parts, one oneach side of the equalizing beam, and joined together bystaples.

In the drawings, A is the equalizing-beam, which is attached to theobject to be moved by means of the staple a. To the short arm of theequalizing-beam is attached the doubletree B, and the outer end of thelong arm is provided with an ordinary swinging staple, 0.

The doubletree B is made of two pieces, b b,

which are joined together and rigidly held in position by the fixedstaples b b. The doubletree is attached to the equalizing-beam by thebolt d, the equalizing-beam being inserted between the two sections 11 bof the double-tree, as is clearly shown in Fig. 2. Whiffletrees U areattached in any suitable way to the staples b b and 0, respectively. Theshort arm of the equalizingbeam is bent forward slightly, so that whenthe draft-attachments are directly in line with each other the long armof the equalizing-beam will be nearly at right angles to the line ofdraft, while the short arm will form an acute angle with the same line.

By this construction the pivotal point of the double-tree is thrown alittle forward of the main portion of the equalizing-beam, and,

in connection with the divided construction of the double-tree, permitsthe inner end of the latter to swing back some distance before it willbe stopped by the beam.

With the construction of double-tree described above, the drat'tattachment is located somewhat farther back than in ordinary draftequalizers, so that a long awkward staple upon the long arm isunnecessary. At the same time the line of draft upon the doubletree, aswell as the whiffletree at the other end of the equalizing-beam, is in adirect line with the longitudinal center of the equalizer, instead of'from the top of the equalizer, as in the ordinary construction, and thusthe downward thrust of the draft upon the equal: izer is obviated.

By bending the short arm of the equalizingbeam and using the divideddouble-tree in connection therewith, as described, I lind, by actualuse, that the middle horse is prevented from falling back, as is thecase when the double-tree can move backward but a short distance beforefinding a stop.

The whole attachment, constructed as described, forms an exceedinglycheap and efficient draft-equalizer wherever it is desired to use threeor more horses.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. The double-tree B, constructed of two pieces, connected togetherrigidly at their ends by open staples b I), substantially as and for thepurposes set forth.

' 2. The combination of the divided doubletree B and the bentequalizing-beam A, substantially as and for the purposes set forth.

SAMUEL SMITH. In "presence of- L. A. BUNTING, HEINRICH F. BRUNS.

UNITED STATES PATENT OFFICE.

CHRISTIAN H. STALL, OF RED FALLS, NEW YORK.

IMPROVEMENT IN LOCKS FOR TRUNKS, 84c.-

Specitication forming part of Letters Patent No. 172,516, dated January18, 1876; application filed October 29, 1875.

To all whom it may concern:

Be it known that I, CHRISTIAN H. STALL, of Red Falls, in the county ofGreene and State of New York, have invented a new and Improved Look, ofwhich the following is'a specification:

My invention consists of a system of checks to obstruct the turning ofthe key and prevent the unlocking of. the lock, except by one acquaintedwith the order of operation by which the checks maybe displaced oravoided, the said systelnbein g as hereinafter described and claimed.

Figure l is a side elevation of the lock with the front plate removed.Figs. 2 and? are details in side elevation. Fig. 4. is a top view withthe top plate removed, and Fig. 5 is a diagram by which to illustratethe order of operating the key to unlock the lock.

Similar letters of reference indicate correspondin g parts.

A is the bolt; B, a check-spring for securing it when shot. D is a rodfor disengaging the check-spring and engaging the bolt by a check-stud,E. F is a tumbler for working the rod by the key. G is a check-stud tostop the key in the proper place for working the tumbler F, and H is aspring, with a stud, I, which engages the bolt in holes'J and K, t holdit locked and unlocked.

The operation is as follows: The key is put in against the spring H,through which the key-pin L passes, andturned until checked by stud G;then it is pulled back in front of the tumbler F, and turned back untilthe upper arm a of said tumbler strikes the stud b of the bolt, as shownin Fig. 2. This disengages check-spring B and moves the bolt a trifle,so that when the check-spring drops again it will not fall in the notchd. Then the key is pushed back and turned back under the tumbler to 1,Fig. 5; then it is pulled forward and turned to the right againsttumbler F as far as it will go, which releases stud E from the bolt.Then the key is pushed in again and turned to the right as far as Fig.2,, where it is arrested by check-stud G; then it is pulled forward tillit passes check-stud G to the right into the notch M of the bolt; thenit is pushed hard against spring H to detach stud and turned far enoughto the right to throw back the bolt. The stud I then springs into holeK, and holds the bolt back against the spring N, which shoots it forwardand looks it, when the key is pressed in against spring H, so as todetach stud I from hole K.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination of tumbler F, bar D, check-springB, and check-stud E with the bolt A of a lock, substantially asspecified.

2. The stud G, combined with the lock-bolt A, having the tumbler F, barD, stud E, and check-spring B, substantially as specified.

CHRISTIAN H. STALL. Witnesses:

GEORGE O. FENN, FRANK G. LARRAWAY.

